140591448 has 48 divisors (see below), whose sum is σ = 393057600. Its totient is φ = 45351360.

The previous prime is 140591443. The next prime is 140591489. The reversal of 140591448 is 844195041.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140591441) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29263 + ... + 33726.

It is an arithmetic number, because the mean of its divisors is an integer number (8188700).

Almost surely, 2^140591448 is an apocalyptic number.

140591448 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

140591448 is an abundant number, since it is smaller than the sum of its proper divisors (252466152).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

140591448 is a wasteful number, since it uses less digits than its factorization.

140591448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63032 (or 63025 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The square root of 140591448 is about 11857.1264647047. The cubic root of 140591448 is about 519.9795948600.

The spelling of 140591448 in words is "one hundred forty million, five hundred ninety-one thousand, four hundred forty-eight".